fixed bugs, memory leaks, etc

build-injector.ps1

@@ -1,15 +1,13 @@
 # Builds the Prestige payload jar (remapped for the production Fabric runtime), then the Rust injector and loader DLL,
 # and collects PrestigeInjector.exe + prestige_native.dll in dist\.
-$ErrorActionPreference = 'Stop'
+# native tools write progress/notes to stderr; failures are detected through $LASTEXITCODE instead
+$ErrorActionPreference = 'Continue'
 Set-Location $PSScriptRoot
 if (Test-Path 'C:\Program Files\Eclipse Adoptium\jdk-21.0.12.101-hotspot') { $env:JAVA_HOME = 'C:\Program Files\Eclipse Adoptium\jdk-21.0.12.101-hotspot' }
 & .\gradlew.bat remapJar --console=plain
 if ($LASTEXITCODE -ne 0) { throw 'gradle remapJar failed' }
-# cargo reports progress on stderr, which PowerShell would treat as an error under 'Stop'
-$ErrorActionPreference = 'Continue'
 cargo build --release --manifest-path injector\Cargo.toml
 if ($LASTEXITCODE -ne 0) { throw 'cargo build failed' }
-$ErrorActionPreference = 'Stop'
 New-Item -ItemType Directory -Force dist | Out-Null
 Copy-Item injector\target\release\PrestigeInjector.exe, injector\target\release\prestige_native.dll dist\ -Force
 Write-Host 'Done: dist\PrestigeInjector.exe + dist\prestige_native.dll'